Suitable for industrial users, aircraft maintainers, and in other loud situations, these state-of-the-art custom molded hearing protectors provide protection in extreme noise environments. Using deep ear impressions of the user's ear, these custom manufactured earplugs provide comfort, a consistent and reliable fit, and extreme noise attenuation. The chemical resistant CTE30X Earplugs also separate and clip into the cups of the Aegisound DC2 Hearing Protector to form an integrated double hearing protection system and provide additional protection against FOD hazards. CTE30X earplugs can be reordered at a discount if we have your impressions on file at Gentex.